#include <cstring>
using std::strlen;

int main()
{
    char *string1 = " ";
    char *string2 = " ";
    char *string3 = " ";

    cout << "The length of \"" <<string1 <<"\" is " <<strlen(string 1)
            << "The length of \"" <<string2 <<"\" is " <<strlen(string 2)
            << "The length of \"" <<string3 <<"\" is " <<strlen(string 3)
            <<endl;
     return 0;
}

#include <iostream>

using namespace std;

int strlen_pointer(const char* str)
{
    int len = 0;
    const char* p = str;
    while(*p)
    {
        ++len;
        ++p;
    }
    return len;
}

int strlen_array(const char* str)
{
    int len;
    for(len = 0; str[len] != 0; len++)
    {
        ;
    }
    return len;
}

int main()
{
    char* p = "Hello, World!";
    cout << strlen_pointer(p) << endl;
    cout << strlen_array(p) << endl;
    return 0;
}

public long Length(string strLen)
{
bool winnt_chinese=true;
winnt_chinese=("中国".Length ==2);
if(winnt_chinese)
{
long l,t,c;
int i;
l=strLen.Length ;
t=l;
for( i=0;i<l;i )
{
c=(int)strLen[i];
if( c<0)
{
c=c 65536;
}
if (c>255)
{
t=t 1;
}
}
return t;
}
else 
{
return strLen.Length ;
}
}